GB1377338A - Telecommunications dial switches - Google Patents
Telecommunications dial switchesInfo
- Publication number
- GB1377338A GB1377338A GB1815373A GB1815373A GB1377338A GB 1377338 A GB1377338 A GB 1377338A GB 1815373 A GB1815373 A GB 1815373A GB 1815373 A GB1815373 A GB 1815373A GB 1377338 A GB1377338 A GB 1377338A
- Authority
- GB
- United Kingdom
- Prior art keywords
- components
- telecommunications
- base
- drive spring
- rotatable component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Toys (AREA)
- Telephone Set Structure (AREA)
Abstract
1377338 Impulse generators SIEMENS AG 16 April 1973 [24 May 1972] 18153/73 Heading H4K In an impulse generator comprising a base 7, finger disc 2, first rotatable component 3 connected to a drive spring 5 and a second rotatable component 10 which, during use, transmits energy stored in the drive spring to a mechanism for producing dial switch pulses, the first and second components are directly connected to each other in form locking fashion, e.g. by engaging teeth 9, and one of the components has a cylindrical collar 6 which serves as a rotation shaft for the two components in the base.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2225225A DE2225225B2 (en) | 1972-05-24 | 1972-05-24 | Number switches for telecommunications, in particular telephones |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1377338A true GB1377338A (en) | 1974-12-11 |
Family
ID=5845744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1815373A Expired GB1377338A (en) | 1972-05-24 | 1973-04-16 | Telecommunications dial switches |
Country Status (11)
Country | Link |
---|---|
AR (1) | AR194560A1 (en) |
BE (1) | BE799983A (en) |
BR (1) | BR7303834D0 (en) |
CH (1) | CH548712A (en) |
DE (1) | DE2225225B2 (en) |
FR (1) | FR2185903A1 (en) |
GB (1) | GB1377338A (en) |
IT (1) | IT987785B (en) |
LU (1) | LU67638A1 (en) |
NL (1) | NL7306108A (en) |
ZA (1) | ZA732876B (en) |
-
1972
- 1972-05-24 DE DE2225225A patent/DE2225225B2/en active Pending
-
1973
- 1973-03-22 CH CH415173A patent/CH548712A/en not_active IP Right Cessation
- 1973-04-16 GB GB1815373A patent/GB1377338A/en not_active Expired
- 1973-04-27 ZA ZA732876A patent/ZA732876B/en unknown
- 1973-05-02 NL NL7306108A patent/NL7306108A/xx unknown
- 1973-05-22 LU LU67638A patent/LU67638A1/xx unknown
- 1973-05-22 IT IT24379/73A patent/IT987785B/en active
- 1973-05-22 FR FR7318517A patent/FR2185903A1/fr active Pending
- 1973-05-23 AR AR248210A patent/AR194560A1/en active
- 1973-05-24 BR BR003834/73A patent/BR7303834D0/en unknown
- 1973-05-24 BE BE131480A patent/BE799983A/en unknown
Also Published As
Publication number | Publication date |
---|---|
ZA732876B (en) | 1974-03-27 |
IT987785B (en) | 1975-03-20 |
NL7306108A (en) | 1973-11-27 |
FR2185903A1 (en) | 1974-01-04 |
LU67638A1 (en) | 1973-07-26 |
BE799983A (en) | 1973-11-26 |
DE2225225B2 (en) | 1974-04-18 |
DE2225225A1 (en) | 1973-12-06 |
CH548712A (en) | 1974-04-30 |
AR194560A1 (en) | 1973-07-23 |
BR7303834D0 (en) | 1973-12-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |